How can I take the content of array

Question

I would like to know how I add the values for a few arrays which start with "yoyo" in one matrix.

The code:

yoyo_asd=('a','b','c')
yoyo_bsd=('asd','111','222')
matrix=[]

I am trying with something like this but nothing..

for vars in dir():
  if vars.startswith("yoyo"):
    matrix.append([vars])

This is my goal:

matrix = [
    ['a','b','c'],
    ['asd','111','222'],
]

Note that your variables are actually tuples and not arrays. You can cast them to list and append. matrix.append(list(vars)) — André Cascais, Jan 03 '20 at 13:49
@ScottHunter - [`dir`](https://docs.python.org/3/library/functions.html#dir) is a built-in function — Sayse, Jan 03 '20 at 13:49

score 4 · Accepted Answer · answered Jan 03 '20 at 13:50

4

Should be a one-liner:

matrix = [list(val) for key, val in globals().items() if key.startswith('yoyo')]

answered Jan 03 '20 at 13:50

Sam Chats

2,271
1
12
34

han solo · Answer 2 · 2020-01-03T14:28:42.040

2

You could just use the vars which returns a dict of the local namespace like:

>>> yoyo_asd=('a','b','c')
>>> yoyo_bsd=('asd','111','222')
>>> matrix=[]
>>> for key, val in vars().items(): # if you are want a global namespace, then use `globals()`
...   if key.startswith('yoyo'):
...     matrix.append(val)
... 
>>> matrix
[('a', 'b', 'c'), ('asd', '111', '222')]
>>>

Help on built-in function vars in module builtins:

vars(...) vars([object]) -> dictionary
Without arguments, equivalent to locals().
With an argument, equivalent to object.__dict__.

edited Jan 03 '20 at 14:28

answered Jan 03 '20 at 13:48

han solo

6,390
1
15
19

It works too :D – yoyo Jan 03 '20 at 14:26
Ofcourse it works. But why are you grabbing things from the global namespace like this, may i know ? :) – han solo Jan 03 '20 at 14:27

score 0 · Answer 3 · answered Jan 03 '20 at 13:52

0

Try like this what u want i would work like that.


yoyo_asd=('a','b','c')
yoyo_bsd=('asd','111','222')
matrix=[]
for vars in dir():
  if vars.startswith("yoyo"):
    matrix.append([i for i in vars])

answered Jan 03 '20 at 13:52

Rachit Kumar

36
3

Try it come back to me if it is having any issue – Rachit Kumar Jan 03 '20 at 13:56

score 0 · Answer 4 · answered Jan 03 '20 at 13:58

convert tuple to list and iterate over to append to matrix.

matrix.append(list(yoyo_asd))
matrix.append(list(yoyo_bsd))    


>>> yoyo_asd=('a','b','c')
>>> yoyo_bsd=('asd','111','222')

>>> matrix=[]
>>> matrix.append(list(yoyo_asd))
>>> matrix.append(list(yoyo_bsd))
>>> matrix
 [['a', 'b', 'c'], ['asd', '111', '222']]
>>>

How can I take the content of array

4 Answers4